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25 lines
691 B
Python
25 lines
691 B
Python
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string = input()
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def isalphanum(character: str)->bool:
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is_lowercase_letter = ord(character) >= ord('a') and ord(character) <= ord('z')
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is_upper_letter = ord(character) >= ord('A') and ord(character) <= ord('Z')
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is_digit = ord(character) >= ord('0') and ord(character) <= ord('9')
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return is_upper_letter or is_lowercase_letter or is_digit
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string = string.strip(' ')
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string = string.strip('-')
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answer = ""
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current = ""
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for character in string:
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if character == ' ' or (character == '-' and len(current)>0):
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answer += current
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answer += '-'
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current = ""
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elif isalphanum(character):
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current += character
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answer += current
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print(answer)
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